Minutes May 2004

 

C: SYSTEM PROTECTION SUBCOMMITTEE

 

 

Chair: D. Novosel

Vice Chair: T. Seegers

 

The System Protection Subcommittee met on May 19th, 2004 at 4:30 PM in St Louis, Missouri. 47 people attended the meeting, including 18 members.

 

10   WGs met at this meeting.

 

The chairman asked for literature on blackout related matters. This material will be to inform the industry on PSRC activities and share the results. Marc Carpenter is responsible for overall PSRC coordination.

 

WG Reports:

C1:     Cyber Security Issues for Relaying

 

The C1 working group met with 6 members and 12 guests. John Tengdin made a presentation of Cyber Security Tools for SCADA and Substation Automation and the remaining time was spent on defining the outline of the report.

 

Assignment

The assignment was not changed but the wording was slightly modified for clarity:

 

-          To prepare a report documenting the status of cyber security standards and to recommend procedures and guidelines for cyber security for protective relays

-          To provide a liaison to other agencies preparing cyber standards in fields related to relaying

-          To provide timely review from a relaying perspective of draft documents prepared by other agencies

 

Furthermore, we decided that ‘Cyber Security’ as considered by this group should encompass all ‘Electronic Data’ as related to Relaying, i.e. both local and remote access should be included.

 

Expected Completion Date

We extended the report due date from the previous May 2005 target to September 2005. This is still a very ambitious schedule. Hopefully, assignments can be handed out at the next meeting and a draft developed soon after.

 

Outline of the Report

The outline was discussed but not finalized to an extent to hand out assignments. The sections to be included are:

 

 

Even though no assignments were handed out it was commented that SEL’s papers could provide information about password handling, and possibly also other aspects.

 

Some issues about network security (or lack thereof) were discussed and Joe Gould, RuggedCom, was invited to make a ‘Networking Overview’ presentation at the next meeting.

IEEE Email Exploder

Dennis Holstein requested an Email Exploder on our behalf and the web site http://grouper.ieee.org/groups/psrc/ctf1/ and several folders exist. Dennis has volunteered to be the administrator for these functions.

However, due to some problems the members email addresses are not posted. As soon as this is corrected, Dennis will send out an email to all members to let them know that the list exploder is working correctly.

 

Meeting minutes and documents produced or reviewed by the group will be posted on the website and the members will be notified when they are posted or updated. Everything that needs to go up on the website should be sent to Dennis Holstein (holsteindk@adelphia.net).

 

Liaisons

Cyber security tools for SCADA and Substation Automation

John Tengdin presented a ‘Recommended Practice (AGA12) for the retrofit of serial SCADA links and the access to IED dialup maintenance ports’ being developed by Gas Technology Institute. The presentation will be posted on our web site.

OPUS Publishing is involved in a development project for these security tools that involve both application software and hardware at the IED end. Trial installations are underway and we look forward to receive updates from John.

 

Cigré

CIGRE JWG D2/B3/C2 is developing a series of papers on cyber-security. They had initially invited C1 to a meeting in June but the meeting was postponed until some later date. Dennis Holstein will keep us informed about any requests from this CIGRE working group.

 

C2:       Power Quality Issues in Protective Relaying

 

C2 met Tuesday May 18, 2004 in St. Louis, MO with 6 members and 7 guests present.  The total number of members is 26.

 

No additional comments or writing sections have been turned in since the last meeting.  TW Cease and Steve Kunsman will take the report content, add the summary, conclusion and make editorials for the final draft report.  The report will be issued for ballot by July.  Comments and ballot responses are to be received by the end of August and will be presented at the next WG meeting in September.  The report will be concluded at that meeting.

 

Steve Kunsman will find an IEC and EN expert in Europe to comment on section 3.4 & 3.5.

 

TW reviewed the open action items from last meeting.  Actions complete from last meeting:

Section 3.6.1 Writing assignment on issues of PQ monitoring and relays - Steve Kunsman

 

Again - all members have been asked to review the document.  The latest version of the document will be posted on the IEEE PSRC C Subcommittee website under WG C2.  The link to the PSRC site will be provided in the distribution of the minutes along with the document.

 

Old Issues:

Eric Gunther will identify other IEEE PQ documents that can be used for inclusion or reference in the C2 document.

 

Eric Gunther proposed that the C2 document be provided to the IEEE Standard Coordinating Committee 22 that is the PQ coordinating body for all of the IEEE.  They can review and provide comments to the C2 working group.

 

Action Items:

1.     Section review assignments due June 24, 2004

Section 6 – Roger Hedding

All sections – all members

2.     Additional writing assignments due June 24, 2004

Section 3.6.3 Application of ITI Curve for Distribution Networks - Patrick Carroll

Summary/Recommendation paragraph on next steps to the paper - Eric Udren

3.     Eric Gunther to distribute a recently published paper on PQ in Word format.  Sections maybe used for inclusion in the paper.

4.     Update and provide comments on bibliography - Sidhu

5.     TW to send out a ballot document requesting PSRC members for comments and approval.

C3:          Processes, Issues, Trends, and Quality Control of Relay Settings

 

Working Group C3 met Tuesday, May 18, 2004 in St. Louis, MO in a single session with 8 (of 21) members and 15 guests participating.  Five of these guests requested to become new members increasing the total membership to 26.

 

There was some discussion concerning the intended output of the working group (paper, report, guide).  The general consensus was that the nature of the material being covered did not warrant a guide.  It was subsequently decided that the output of the working group, at least for now, will be a PSRC report, with an associated Transactions paper summarizing the report.  Target date for completion is 2006.

 

The balance of the session was taken to review the draft outline and enlist more volunteers for the different sections.  The different volunteers were noted on the latest draft outline, which will be e-mailed to all members and interested guests.  Discussion items of note include:

 

A first draft for each section should be sent to the Chair/Vice-Chair by August 16, 2004, so that the sections can be combined into a first overall draft of the report, which will be reviewed at the September meeting.  Reminders will be sent in June and July to each section owner.

 

Next meeting request single-session, 30 participants, with computer projector.

 

Action Items:

1)       Refine the Outline Section details and start working on the section content.  A first draft of the section is due August 16, 2004  - Outline section owners and assistants

2)       Send any relevant references to vice-chair for inclusion in Reference section – All members

3)       Send any suggestions for needed definitions to vice-chair for inclusion in Definitions section – All members

C4:     Industry Experience with Remedial Action Schemes 

 

WG C-4 held its first meeting for one sessions today with total 19 in attendance.  Ten (10) attendees signed up to be WG members.

 

a)      Review of Assignments

 

The attendees discussed a list of topics including:

 

·         Types of schemes to be included in the survey - Should the survey encompass (wide area, UF, UV, any form of none-conventional, or should it focus on the complex schemes

·         Should UV load shedding schemes with multi-station be included?

·         Focus the survey such that responses are clear and provide the reader with useful information

 

NERC 2002 definition of SPS and RAS schemes was posted for the attendees to review and discuss as a starting point.

 

A proposal was made for the WG members to check the Regional Councils web sites or definitions of SPS and / or RAS to verify if there are differences than the NERC definition and to help the WG with preparing a definition for the type of schemes the survey should include.

 

WG Chair is also coordinating with PSRC CIGRE liaison.

 

Recommend we continue to use terminology consistent with industry practice and familiarity

C5:          Deployment and Use of Disturbance Recorders

 

The meeting was called to order at 4:30 P.M. Tueday, May 18, 2004 with 8 members and 10 guests in attendance. Jim Hackett of Mehta Tech joined the working group as a member. Chairman Barry Jackson resigned as chairman due to time constraints of the job. Bill Strang assumed the chair. Tony Napokowski will be the vice-chair. Tony was unable to attend this meeting due to a conflict in working group schedules.

 

Outstanding assignments were reviewed, Alex Apostolov indicated he will submit outline section 2 by e-mail following this meeting. Additional writing assignments were made to complete the open sections of the outline. These writing assignments are requested to be e-mailed to the chairman by July 15. They will be added to the initial draft and posted on the working group web site prior to the next meeting. The chairman will also attempt to edit a draft prior to the next meeting for a single voice.

 

Larry Smith reported that due to interest in the time stamp response of various IEDs to a change of current magnitude, he had conducted a preliminary test of a number of units by various manufacturers and designs. The initial results showed interesting results. Larry will analyze these results and submit a report to the working group intended as an annex to the paper.

C6:     Relay Engineering in Power Engineering Curricula

 

Working group C-6 met with four members and five guests. The meeting was conducted by Juan M Gers. Copies of the minutes of the last meeting in Tampa, Florida were distributed. During the meeting the content of a course on electrical protections at senior elective level or 1st year graduate was discussed. The course will be made up by self-contained, stand-alone modules.

 

It was agreed to distribute by e-mail the content that was discussed, so that members and guests can review it and present additions and/or modifications prior to the next committee of C6 group when the course content should be defined and the modules allocated among members for writing and development.

C7:          Protection System Testing

 

WG C-7 Met on May 18 in two sessions with total 40 (20 M, 20 G) in attendance:

 

b)      Review of Assignments

 

The WG members reviewed several contributions and exchanged comments and observations and also had a presentation by Mladen Kezunovic.

 

Writing assignment topics discussed included:

 

·         Interlocking and Control functions inherent to the protective schemes will be included in the writing assignments for the purpose of system testing

·         Balance of security vs. dependability (Out of step).  Importance of line testing

                                                   i.      Testing for various types of faults, applying faults to different phases and inception angels, closed loop tests (dynamic / non-linear tests).

                                                 ii.      One of the examples discussed is about the recent newsworthy events that have captivated our attention (August 14, 2003) and whether methods of system testing would be able to identify some of the contributing elements in advance to be rectified.

·         Testing of combination of devices as a system

·         Open-loop and closed loop system testing solutions

·         Cost effective and easy-to-use techniques

·         Flexibility for adjusting / adopting to system changes

·         Each section to reflect on the incremental differences of system testing in comparison to the conventional test methods, and the advantages of new protection system testing.

 

·         Discussion on the scope clarification to include Control functions associated with protection.

 

Suggested Updated Scope:

 

The Working Group will develop a guide for Power System Protection Testing.  The Guide will include System Application Test Requirements, Scope and level of tests and benefits of system testing for overall protective schemes.  This assignment encompasses overall system testing procedures (generators, line, transformer, reactors, capacitors, SPSs, end-to-end testing, distributed application within substation, etc.), data collection requirements, as well as the test procedure definitions.  The WG will describe the methods, extent, and types of system tests for protection at various voltage levels and applications. Interlocking and Control functions inherent to the protective schemes will be included in the writing assignments

 

c)       One presentation by Mladen Kezunovic covering

 

New ways of using permanent test installations, field units and lab set-ups to evaluate / trouble shoot protective relay operations

 

Test philosophy, experiences and trends for system testing and statistical performance analysis of functions within a device

 

C8:     Phasor-Based Models for Analyzing Relay Performance

 

The Working Group did not meet during the PSRC meetings in St. Louis, MO.

The Vice Chair reported that editorial changes suggested in Draft 9 were incorporated in Draft 10, which was submitted to the members of the C Subcommittee for comments of substance.  No such comments were received.  The draft was then submitted to the Officers of the PSRC for approval.  The approval was received.  The paper will be now be submitted for publication in the IEEE Transactions on Power Delivery.

 

Subcommittee will keep the wg active pending discussion.

C9:          Application of Protective Relays used for Abnormal Load Shedding and Restoration

 

   Met with   9 members and   11  guests

 

The working group met on Wednesday, May 19th, with 9 members and 11 guests present.  Draft 4 of the document had been circulated, with an informal working group survey to solicit comments.

 

The working group discussed the schedule for proceeding to ballot the document:

-          resolve internal negative responses by May 19th (today)

-          submit revised document (Draft 5) to IEEE Editor by June 18th

-          revise Draft 5, based on Editor’s comments by July 15th

-          convert document to pdf and upload to the IEEE Web Site by July 31st.

 

The remainder of the session was used to review comments. The one negative response was resolved. Additional comments will be sent to the review committee for review and incorporation into Draft 5.

C10:   Effects on Changing Utility Environment on Protective Relaying

 

Working group C-10 met, Tuesday, May 18, 2004 with 15 attendees.

Version 5 of the WG Report was distributed to all members and interested guest. 

Discussions centered around editorial changes necessary to make the report more readable.  Version 6 of the report will be submitted to Sub-Committee C for final approval.   After acceptance from SC-C the recommendation of the Working Group is to be dissolved.

C11:          Protection Issues during System Restoration

 

The working group met on May 18, 2004 with 5 members and 6 guests in attendance.  The paper was balloted successfully by the working group and sent to the subcommittee and officers for comment/approval.  At this meeting, the comments received from Charlie Henville were discussed and resolved.  Bill Kennedy and Alex Apostolov agreed to give a final reading to the paper.  The paper will then be sent to IEEE for publication in the “Transactions on Power Delivery.”

Power System Analysis, Computing & Economics Committee Liaison by Malcolm Swanson

No activities to report

NERC   by Phil Winston

NERC is initiating a zone 3 application review.  We are the body to respond as the experts on relaying.  We currently have 9 PSRC members on the review group.

 

Liaison Report of the IEEE PES Power System Stability Controls SC to the PSRC  

by Gary Michel

 

No activities to report

Old Business

C Web site has been updated

New Business

Investigate performance of protective systems on protected equipment during stressed conditions including discussion of dependability vs security.

Formed a task force with the title: TF12 Performance of Relaying during Stressed Conditions

George Bartok/Damir Novosel will chair the task force to meet in September.